2197504 has 48 divisors (see below), whose sum is σ = 4668300. Its totient is φ = 1032192.

The previous prime is 2197501. The next prime is 2197513. The reversal of 2197504 is 4057912.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2073600 + 123904 = 1440^2 + 352^2 .

It is not an unprimeable number, because it can be changed into a prime (2197501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59374 + ... + 59410.

2^2197504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2197504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2334150).

2197504 is an abundant number, since it is smaller than the sum of its proper divisors (2470796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2197504 is an equidigital number, since it uses as much as digits as its factorization.

2197504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2197504 is about 1482.3980572033. The cubic root of 2197504 is about 130.0099400683.

It can be divided in two parts, 2197 and 504, that added together give a triangular number (2701 = T₇₃).

The spelling of 2197504 in words is "two million, one hundred ninety-seven thousand, five hundred four".